Our people
We have approximately 100 staff, including our Chief Executive and senior managers whose activities are overseen by a Council of 12 people who are a mix of doctors and lay people.
Our Chair is Dr Kenneth (Ken) Clark. Joan Simeon is our Chief Executive Officer.
Our Chair - Dr Kenneth (Ken) Clark
Dr Kenneth (Ken) Clark

MB ChB 1981 Otago, FRANZCOG 1989, FRACMA 2012
Dr Clark was appointed to Council in August 2020.
Dr Clark is vocationally registered in both Obstetrics and Gynaecology and Medical Administration. He is currently a practising gynaecologist in Palmerston North. Dr Clark is a past president of the Royal Australian and New Zealand College of Obstetricians and Gynaecologists. Dr Clark was Chief Medical Officer (CMO) of MidCentral DHB for 17 years and he chaired the national DHB CMO group for nine years until leaving his CMO role in 2019.
Dr Clark is the Chair of Council's Education Committee. He has been involved in many of Council initiatives over recent years around improving prevocational medical education.
Our Council members
Professor Marie Bismark

MBChB MPH MPsych MD FRANZCP FAFPHM (RACP)
Professor Marie Bismark was elected to Council in 2024.
She is a psychiatrist, public health physician, health lawyer, and company director. She divides her time between the Kapiti Coast, New Zealand and Melbourne, Australia.
In addition to her clinical work, Marie leads a research team at the University of Melbourne, focusing on the interface between patient safety and clinician wellbeing. She serves as a Director of several health sector organisations including the Royal Women’s Hospital and Summerset aged care. Her research has influenced regulatory policy in Australia and internationally.
Marie completed a Harkness Fellowship at Harvard has been named as one of the Australian Financial Review’s 100 Women of Influence.
Professor Marie Bismark is currently a member of Council's Audit and Risk Committee and a member of the Health Committee.
Dr Stephen Child

MD 1986 Ottawa, FRCP(C) 1991, FRACP 1995
Dr Stephen Child is a Canadian-trained General Physician with an interest in Respiratory Medicine working in NZ since 1987. He is a consultant with the Department of General Medicine at Auckland DHB and continues a weekly private practice.
Stephen’s previous roles have included: Chair of the New Zealand Medical Association, DHB National Workforce Strategy Group member, the Minister of Health’s Medical Training Board member, Northern Clinical Training Network Board member, and Health Workforce New Zealand Clinical Advisor. Currently, he works part time as Chief Medical Officer for the Southern Cross Health Society and sits on the Clinical Governance group for Homecare Medical Ltd.
A recipient of the NZMA 2018 Fellowship award, Stephen continues to make an impact in the health sector. He is particularly committed to professionalism in medicine throughout his clinical, teaching and advocacy roles.
Dr Child is a member of Council's Audit and Risk Committee and a member of the Health Committee.
Andi Cook

Andie Cook is a Physician Associate with approximately 16 years of clinical experience across military, urgent care, and emergency medicine settings in the United States and New Zealand.
Andie began her career as a medic in the United States Air Force and the Utah Air National Guard, before completing her Bachelor's degree followed by her Masters Degree in Physician Associate training at the University of Utah Medical School, graduating in 2010. Upon qualifying as a Physician Associate, she was commissioned as an officer in the Utah Air National Guard, with whom she continued to serve, alongside clinical work in family medicine and emergency medicine until moving to New Zealand.
Andie relocated to New Zealand in 2016, initially working in Urgent Care at Te Awamutu Medical Centre for just over two years. For the past eight years, she has worked in Urgent Care at Hastings Health Centre, where she has also helps manage the Fracture/Injury Clinic. She also provided locum coverage for Gore Emergency Department for just over two years until recently.
Dr Ainsley Goodman

MB ChB 1994 Otago, FRNZCUC 2006, FRNZCGP 2017
Dr Goodman was first elected to Council by the profession in 2018 and was re-elected for a further three year term in 2021 and 2024.
She graduated MBChB from the University of Otago in 1994 and completed fellowships in Urgent Care in 2006 and General Practice in 2017. Her career experience has been diverse, working in emergency medicine, general practice and urgent care, in the military as a civilian doctor, in medical education, telehealth, and in New Zealand, Ireland and Australia.
Dr Goodman was a member of Council’s Professional Conduct Committee from 2015 to 2018 until elected to Council. She is currently a member of Council’s Education Committee and has been Council’s representative on the Australian Medical Council’s Progress Monitoring Subcommittee since 2019.
Dr Manoja Kalupahana
BSc (1992), MBChB (1998), FANZCA (2006), MInstD2014
Dr Manoja Kalupahana is a Specialist Anaesthetist based in Auckland with more than two decades of experience in both the public and private health sectors. She holds a Bachelor of Science from Victoria University of Wellington, a Bachelor of Medicine and Bachelor of Surgery (MBChB) from the University of Auckland, is a Fellow of the Australian and New Zealand College of Anaesthetists (FANZCA), and a Member of the Institute of Directors (MInstD).
Alongside her clinical practice, she has held numerous leadership and governance roles. At Health New Zealand | Waitematā, she is Clinical Lead for Paediatric Anaesthesia, serves on the Executive of the Department of Anaesthesia, and is a member of the Senior Medical Advisory Committee. She is also Director of Anaesthesia Auckland Ltd, Anaesthesia Advisor to the Mobile Healthcare Group, a member of the Brightside Clinical Governance Committee, a member of the New Zealand Paediatric Anaesthesia Network, and serves on the Committee of the Auckland Medico-Legal Society.
Dr Hinamaha Lutui
MB ChB 2010 Auckland, FRNZCGP 2017
Dr Hinamaha Lutui is of Tongan and European descent. Her mother's family hail from Lapaha, Tongatapu and her father’s family are from Glasgow and Hull. Lutui is her husband’s name and hails from Ha’apai.
Dr Lutui was appointed to Council in July 2023.
Dr Lutui is a GP and fellow of the RNZCGP and one of the founding members of a Pacific provider Southpoint Family Doctors in Manukau Auckland. She is also clinical teacher for trainee interns through the University of Auckland, a GPEP teacher for the RNZCGP, the Clinical Director at The Cause Collective, and is member on the Pacific Senate (Fatu Fono Ola) at Te Whatu Ora.
After completing a science degree at Otago, Dr Lutui was still a bit lost as to which career path to follow and went on to do further studies and gained a BCA at Victoria University, before deciding to attend medical school to become a GP. After graduating from Auckland University, she trained at Middlemore Hospital, and had the opportunity to experience a CBA (Community Based Attachment) as a House Officer at Baderdrive Doctors Clinic in Mangere. This experience cemented her career path into general practice. After completing PGY2, she went straight into GPEP training and fellowship.
Dr Roderick Mulgan

MbChB MPP LLB(hons)
Dr Roderick Mulgan is a Fellow of the Royal New Zealand College of General Practitioners with extensive experience in general practice and governance.
He currently practises exclusively in aged care and owns a medical practice that provides services to aged care facilities across Auckland.
Alongside his medical career, Dr Mulgan is a criminal barrister, appearing as counsel across a range of criminal matters. He has particular expertise in traffic law, professional discipline and Clean Slate applications.
Dr Mulgan has previously served as a director of Medicus and Medic Alert and is currently a director and former chair of the Free Speech Union.
Dr Alexandra Muthu

MBChB Auckland 2000, FAFOEM (RACP) 2013, CMInstD
Dr Alexandra Muthu was elected to Council in 2024. She is an Occupational & Environmental Physician with a career long interest in worker health and wellbeing, sustainable work, and healthy workplaces.
Dr Muthu is Clinical Director OH&SS Waitemata and interim National Clinical Lead OH at Health NZ, and provides advisory and clinical services through Dynamic Health. She is a Doctors Health Advisory Service Trustee and Chair of the RACP Safety, Health & Wellbeing of Healthcare Workers Working Group. Her research interests include clinician and organisational wellbeing.
Dr Muthu has had a diverse career in healthcare and industry including National Telehealth Service Clinical Director, Air New Zealand Physician, Mayo Clinic USA researcher, RACP Australasian Faculty of Occupational and Environmental Medicine (AFOEM) Councillor, Aotearoa NZ AFOEM Chair, Faculty Education Committee, Masters paper co-ordinator and NZ Dust Diseases Taskforce co-Chair, and is currently a member of Council's Health Committee
Ming-chun Wu (Deputy Chair)

CMInstD, MBA (1st Hons), BSc, BBus, BEd, BA
Ming-chun Wu is a Chartered Member of the Institute of Directors and an experienced professional governor with more than 19 years of expertise in organisational transformation, strategy, and governance across public, regulatory, and community sectors. She has held senior roles at Te Puni Kōkiri, the Ministry of Business, Innovation and Employment, and other government agencies, leading complex policy, strategy, and change initiatives.
Ming-chun brings extensive regulatory governance experience through her current and previous appointments to statutory bodies, including serving as Chair of the Pharmacy Council of New Zealand and Deputy Chair of the Chinese Medicine Council of New Zealand and the Plumbers, Gasfitters and Drainlayers Board. Her deep understanding of health regulation, professional standards, and the Health Practitioners Competence Assurance Act 2003 supports the Medical Council's role in protecting public safety and maintaining confidence in the medical profession.
In addition to her role on the Medical Council, Ming-chun is Independent Chair of TechCollect NZ, Trustee of the Wellington Community Fund, and a Director of Network for Learning Limited.
Ming-chun currently serves as Chair of the Council's Audit and Risk Committee.
Professor Ron Paterson
LLB(Hons) 1979 Auckland, BCL 1981 Oxford, FRACP (Hon) 2014
Prof Ron Paterson grew up in South Auckland, of Scottish and Ngāti Raukawa descent. Ron is a health law and ethics expert, with a diverse career as a law professor at Auckland University, Deputy Director-General of Safety and Regulation, Health and Disability Commissioner, Parliamentary Ombudsman, and Visiting Fellow at Melbourne University (teaching Patient Safety & the Law). He is a former director of the Royal Australasian College of Physicians board and chair of the Banking Ombudsman Scheme.
Ron has led several major inquiries and reviews in New Zealand and Australia, in patient safety and quality, medical regulation, veterans’ support, maternity care, aged care, mental health and the regulation of lawyers. He is the author of The Good Doctor: What Patients Want (2012), and is Chair of Council's Health Committee.
Dr Derek Sherwood

MBChB (Otago) 1982 FRCS (ED) 1987 FANZCO
Dr Sherwood was appointed to council in 2026
Dr Sherwood grew up in Nelson, trained as a doctor at Otago University and then completed Ophthalmology training in the UK returning to work in Northland( Te Tai Tokerau ) in 1990 and then moving to Nelson Marlborough ( Te Tauihu ) in 1996 where he continues to work as a Paediatric Ophthalmologist.
He has had past leadership roles as Chair of the Save Sight Society, Chair of the NZ branch of RANZCO, Chair of the Council of Medical Colleges, Clinical Lead for Choosing Wisely, Planned Clinical Lead for Te Whatu Ora and is currently Interim Chief Medical Officer for Nelson Marlborough.
In 2025 he was awarded the Dorothy Potter Medal by the NZ Branch of RANZCO for his services to Ophthalmology in New Zealand.
Our Manukura (Chief Executive) - Ms Joan Simeon

Joan was appointed Manukura | Chief Executive in 2017, having spent the previous 14 years in various senior executive roles at Council.
Joan holds a Master’s in Public Management and a post-graduate qualification in Dispute Resolution. Joan is the Chair of the International Association of Medical Regulatory Authorities (IAMRA).
Joan has a strong interest in using medical regulatory levers, alongside influence to improve professionalism, ensure competence and ultimately public safety. Joan is an advocate for equity in healthcare and sees the regulator as having a key role in achieving this.
You can follow Joan on LinkedIn: https://www.linkedin.com/in/joan-simeon-b026214a/
Our Pouroki (Registrar) - Christine Anderson

LL.B, B.A. (VUW)
Christine Anderson is the Council’s Pouroki (Registrar). Christine is an experienced lawyer and leader.
Before joining the Medical Council, Christine was the Registrar for Te Pou Whakamana Kaimatū o Aotearoa | Pharmacy Council of New Zealand. Prior to this, Christine worked as a lawyer, mostly for professional regulators.
